Adaptive play-out algorithms for voice packets

Author

Jeske, Daniel R. ; Matragi, Wassim ; Samadi, Behrokh

Volume

3

fYear

2001

fDate

2001

Firstpage

775

Abstract

We study the delay characteristics of voice packets that share a transmission medium with bursty data traffic. In order to model the data traffic accurately, we used real data traffic traces upon which we superimposed simulated voice sources generating real time traffic at a constant rate. Our simulation environment allows us to easily develop and compare different adaptive algorithms for the play-out delay of voice streams. We motivate and compare the performance of three algorithms based on exponential smoothing techniques. We test the algorithms in the context of a shared 10 Mbps Ethernet LAN, using the CSMA/CD protocol

Keywords

Internet telephony; access protocols; adaptive systems; code division multiple access; delays; digital simulation; integrated voice/data communication; local area networks; packet switching; telecommunication traffic; 10 Mbit/s; CSMA/CD protocol; Ethernet LAN; Ethernet simulation model; Internet; LAN; WAN; adaptive play-out algorithms; algorithms performance; bursty data traffic; data traffic modelling; delay characteristics; exponential smoothing techniques; packet loss rate; packet telephony; play-out delay; real data traffic traces; real time traffic; simulated voice sources; simulation environment; transmission medium; voice packets; voice streams; voice-data integration; Decoding; Delay effects; Ethernet networks; Heuristic algorithms; Jitter; Local area networks; Quality of service; Switches; Telecommunication traffic; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2001. ICC 2001. IEEE International Conference on

Conference_Location

Helsinki

Print_ISBN

0-7803-7097-1

Type

conf

DOI

10.1109/ICC.2001.937344

Filename

937344